I had this medicine to postpone my period for few days, i took that same medicine once or twice almost 2-3 years prior..But never had any problems.but this time I took that same medicine around march, n then I got my period after few days n that was normal.but m missing my period since April. N this month, instead of having my period normal,it shows up as it's look like dried blood or some kind of.that to noy in a heavy way or something.for past two weeks that's what happening.what should I do?